Dslr Cases How To Measure The Optical Zoom In DSLR Cameras'?
How to measure the optical zoom in DSLR cameras'? - dslr cases
.. usually on a digital camera that gives the types of 3x or 5x zoom, but if as DSLR 30-100mm, what is the meaning of life?
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2 comments:
It is not necessary ... The focal length is important. With digital cameras, but also sets the focal length, but are rarely used to support the camera or to sell.
For example, a 30 would be 100/30 = 3.3333x-100mm zoom. It's just a relationship between the maximum telephoto focal length to the larger picture.
I have a 600mm f/4L. Technically, it is a zoom 1x, has a fixed focal length (also known as one of the most important targets), but if you compare a photo with him for the same time with the end of 30 mm in at above the 30 - 100mm lens 20x seems to be bigger, with the goal of 600 mm.
Learn to think in terms of focal length, and extends not only proportions. Here is a test that the best way is to enlarge on a subject?
A) 24-105mm (4.375x zoom)
B) 70-200mm (2.857x zoom)
C) 100-400mm (4x zoom)
The answer is the first C, B, second and a final one. Although the highest zoom ratio has the lowest maximum focal length.
The other gave the literal answer to your question. Well, I'll give you the answer I think you wanted. I think you know about the extension. Basically, the length to take in millimeters and divide by 35 mm. If a 100mm lens, then it is essentially 3X (3 staff). Moreover, achieving a 400mm lens around 10X. There is a reason, not in this way even if it is complicated to use, and therefore my answer to your personal reference speak.
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